Peep Shows Through History: From Classic Erotica Through 1970s Smut

By Buck Wolf, About.com Guide

Many early peep shows were called "What the Butler Saw," because they featured a keyhole view of someone undressing, as if you were a butler spying on your mistress.

One of the earliest was actually called "What the Butler Saw."

In this scene, vacationing young ladies in 1935 peek into their erotic mutoscopes to watch sexy films on a pier at Llanduno, North Wales, in Britain.

Who says porn is for men?

Films on display here include "Her Hubby's Sweetie, "Keep Cool" and "Palm Beach."